Essays Tagged: "Data model"

and their relationships to each other, typically used in computing in regard to the organization of data within databases or information systems. An entity is a piece of data; an object or concept abo ... tity is a piece of data; an object or concept about which data is stored. A relationship is how the data is shared between entities. The three types of relationships between entities are one-to-one, o ...

used for analysing and designing very large systems. A good example would be systems based on large databases.This methodology is made up of five stages. The first stage is a feasibility study. A prop ... e and depth of the study. A detailed investigation of the current system is undertaken, in terms of data structure and system processes. This investigation is documented together with any requirements ...

used for analyzing and designing very large systems. A good example would be systems based on large databases.This methodology is made up of five stages. The first stage is a feasibility study. A prop ... e and depth of the study. A detailed investigation of the current system is undertaken, in terms of data structure and system processes. This investigation is documented together with any requirements ...

Structured data and unstructured data are both used daily by many people, many of whom don't distinguish betwee ... eople, many of whom don't distinguish between the two (Weglarz, 2004). Being able to harness to two data types together is a great feat and can help with Sarbanes-Oxley compliance (Weglarz, 2004).Stod ... (2005) discusses the tendency for businesses to strive for the competitive edge and how opening up data access can help steer businesses toward that end. Stodder (2005) discusses the efficacy of SOA ...

Week 2 DQ 2University of PhoenixDBM500: Database ConceptsAugust 24, 2007�How do Entity Relationship Diagrams (ERDs) help to ensure pr ... Entity Relationship Diagrams (ERDs) help to ensure proper database design?The importance of proper database design was addressed in DQ1 of this week. Entity Relationship Diagrams (ERDs) help ensure p ... onship Diagrams (ERDs) help ensure proper database design by graphically showing the structure of a database.ERDs also help us learn key concepts about the data we need to use or manipulate. For examp ...

forms testing on proto type printers for HP at HP's Vancouver site. In an effort to gain additional data, HP would like to have VeriTest collect current data in a different method. The new method woul ... n this model is identifying the problem, which is a lack of easy access and compilation of critical data for research and development (R&D) teams. R&D would like VeriTest to input the data int ...

The construction of Object-Oriented Database Management Systems started in the middle 80's, at a prototype building level, and at the be ... tems from the need to cover the modeling deficiencies of their predecessors, that is the relational database management systems. They were intended to be used by applications that have to handle big a ... nagement systems. They were intended to be used by applications that have to handle big and complex data such as Computer Aided Engineering, Computer Aided Design, and Office Information Systems. The ...

uch as purchasing, operations, marketing, and personnel may be convinced DBMS is ideal. Designing a database follows a general rule of stage analysis in:Data requirementsClassification of informationR ... in:Data requirementsClassification of informationRelationship between informationTransactions among data entitiesRules of identityThere are two stages in creating a database design: data and functiona ...

uch as purchasing, operations, marketing, and personnel may be convinced DBMS is ideal. Designing a database follows a general rule of stage analysis in:Data requirementsClassification of informationR ... in:Data requirementsClassification of informationRelationship between informationTransactions among data entitiesRules of identityThere are two stages in creating a database design: data and functiona ...

CONCEPTUAL DATA MODELINGA data model is used by businesses to help govern the properties of the organization's ... s is important because a business rule represents business policies that should be enforced via the database. During the Requirements Structuring phase a data model captures the conceptual data requir ... ul refinements to subsequent models, a commitment must be made to designing an effective conceptual data model.The Conceptual Data Model represents a view of the overall structure of an organization's ...